I flew out of LAX in July on Qantas to Sydney. Most of the flights at the international terminal were flying to Asian destinations. Singapore, Korean, JAL, ANA, Qantas, Air NZ, Asiana, and other airlines all fly 747s to and from Asia to Los Angeles. Air France, Lufhtansa, British Airways, KlM, and several other European airlines fly 747s to Europe. If you see a 747 at Los Angeles, however, there's a 2-1 chance that it's flying to the Pacific over Europe.